19/02/2026
🟦 HOW TO START ANTIDIABETIC MEDICATIONS
📌 STEP 1: Confirm the Diagnosis
✔️ FPG ≥ 7.0 mmol/L
✔️ 2-hr post glucose ≥ 11.1 mmol/L
✔️ Random glucose ≥ 11.1 mmol/L + symptoms
✔️ HbA1c ≥ 6.5%
📌 STEP 2: Assess the Patient 🔍 Check:
▪️ Type of DM (Type 1 / Type 2)
▪️ Severity of hyperglycemia
▪️ Symptoms (polyuria, weight loss)
▪️ HbA1c level
▪️ Age, BMI
▪️ Comorbidities (CKD, CVD, liver disease)
📌 STEP 3: Decide – Lifestyle Alone or Drugs?
🟢 Lifestyle modification only (Trial 3 months)
▪️ Newly diagnosed
▪️ HbA1c < 7.5%
▪️ Asymptomatic
➡️ If not controlled → start drugs
📌 STEP 4: First-Line Drug (Type 2 DM)
💊 Metformin – Drug of choice
▪️ Start low → 500 mg once daily
▪️ Increase gradually
▪️ Max dose: 2–2.5 g/day
❌ Avoid in:
▪️ eGFR < 30 ml/min
▪️ Severe liver disease
▪️ Heart failure (unstable)
📌 STEP 5: If HbA1c ≥ 7.5–9%
➕ Dual therapy ▪️ Metformin + one of:
▫️ Sulfonylurea
▫️ DPP-4 inhibitor
▫️ SGLT-2 inhibitor
▫️ TZD
📌 STEP 6: If HbA1c ≥ 9% or Symptomatic
💉 Start Insulin (± oral drugs)
▪️ Weight loss
▪️ Ketosis
▪️ Severe hyperglycemia
📌 STEP 7: When to Start Insulin Directly?
🔴 Type 1 DM
🔴 Pregnancy
🔴 DKA
🔴 Severe infection / surgery
🔴 Very high glucose (>300 mg/dL)
📌 STEP 8: Monitoring & Titration
🩸 Fasting & post-prandial glucose
📊 HbA1c every 3 months
🔄 Adjust dose regularly
📌 Golden Rule ✨ 💡 Start low – go slow – individualize treatment